On this page, Elaion presents a list of the festivals of ancient Hellas, arranged in sequence over the year. Throughout this document, the names of the months are those used by the ancient Athenians as the Athenian calendar is more completely known.

Hekatombaion
4 – Aphrodisia – festival of Aphrodite and Peitho (Persuasion), where the temple was purified with dove’s blood, the altars cleansed, and the two statues washed.
12 – Kronia – festival in honor of Kronos
16 / 15-16 – Sunoikia – community festival in Athens. Sacred to Athena. Two-day celebration every other year.
21 – Sacrifice to Kourotrophos, (Hekate &) Artemis at Erkhia
23-30 – Panathanaia – main celebration on the twenty-eighth in honor of Athena. Greater held in the third year of each Olympiad, Lesser held annually for fewer days.

6 – Proerosia – agricultural festival for Demeter held at Eleusis, after the oracle of Delphi told the Athenians to commence this festival to end the current famin. First fruits (mostly grain) were given to Demeter.
7 – Pyanepsia – festival in honor of Apollon and Theseus
8 – Theseia – festival in honor of Theseus
8 – Oskhophoria – festival of the vintage (grapes)
9 – Stenia – women’s festival in honor of Demeter and Persephone
11-13 – Thesmophoria – festival in honor of Demeter
14 – Sacrifice to The Heroines at Erkhia
19-21? Apatouria – paternity festival. The first day (Dorpia) was celebrated with a communal feast within the brotherhood, the second day (‘Anarrhusis’) sacrifice were made to Zeus Phratrios and Athena Phratria, and the third day (‘Koureotis’) young boys admitted to their father’s brotherhood.
30 – Khalkeia – festival in honor of Athena and Hephaestus.

Poseideon
(?) – Rustic or Lesser Dionysia in honor of Dionysos
5 – Plerosia festival at Attic deme of Myrrhinus
8 (or equinox) – Poseidea – festival in honor of Poseidon
16 – Sacrifice to Zeus Horios at Erkhia
26 – Haloa – fertility festival in honor of Dionysus and Demeter. Pomegranates, apples, eggs, fowls, and some species of fish were not to be consumed during the festivities.